Shaddows - 12:33 pm on Jun 8, 2011 (gmt 0)
Matt mentions 'pull back' but that's nonsense and very disingenuous of him
"Pull back" in this context appears to mean "reduce the scope" of Panda. It looks like they are improving the specificity [en.wikipedia.org] of the algo.
In other words, 2.2 will include a change that might return SOME sites to previous rankings. This is NOT a reversal of a penalty, it is a redefinition of the scope of competence of the algo.
So it's clear to me that this is a penalty
Gah! Nothing MC says indicates its a penalty. Its an algo that is "competent" in a specific set of conditions, which (when competence-approved) can result in a range of SERP-modification outcomes.